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%I #5 Mar 30 2012 18:37:44
%S 0,1,0,1,1,2,1,3,1,4,2,4,2,6,3,6,4,7,3,10,5,9,6,10,7,13,7,12,9,16,8,
%T 17,10,17,14,18,12,20,13,24,16,26,15,27,20,25,19,30,18,34,23,33,26,37,
%U 28,41,26,36,28,45,30,48,35,47,38,50,33,55,42,59,41,60,39,61,51,61,53,69
%N Column 2 of triangle A117170 of Inverse-Shift-Moebius coefficients and so equals the Inverse-Shift-Moebius transform of [0,1,0,0,...].
%o (PARI) {a(n)=if(n<2,0,prod(i=0,n, matrix(n,n,r,c,if(r>=c,if((r+i)%(c+i)==0,1,0))))[n,2])}
%Y Cf. A117170 (triangle), A117171 (column 1), A117173 (column 3), A117174 (row sums).
%K nonn
%O 1,6
%A _Wouter Meeussen_ and _Paul D. Hanna_, Mar 05 2006
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